CAST The C ern A xion S olar T elescope Κωνσταντίνος Ζιούτας ,
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CAST The Cern Axion Solar Telescope Κωνσταντίνος Ζιούτας, Τμήμα Φυσικής, Πανεπιστημίου Πατρών CERN, 16/11/2012
description
CAST The C ern A xion S olar T elescope Κωνσταντίνος Ζιούτας , Τμήμα Φυσικής , Πανεπιστημίου Πατρών CERN, 16/11/2012. Fritz Zwicky 1898 – 1974 . There is no Royal Way … to axions , c hameleons,…, solar physics!. Euclid Ptolemy I -2300 . - PowerPoint PPT Presentation
Transcript of CAST The C ern A xion S olar T elescope Κωνσταντίνος Ζιούτας ,
CASTThe Cern Axion Solar Telescope
Κωνσταντίνος Ζιούτας,Τμήμα Φυσικής, Πανεπιστημίου Πατρών
CERN, 16/11/2012
Fritz Zwicky 1898 – 1974
http://sax.iasf-milano.inaf.it/Xashelp/index.html
There is no Royal Way … to axions, chameleons,…, solar physics!
Euclid Ptolemy I -2300
http://encyclopedia.thefreedictionary.com/dark+matter encyclopediahttp://encyclopedia.thefreedictionary.com/Galaxy+rotation+problem
Πυρηνικές δυνάμεις πρόβλημα
Νετρόνιο => ουδέτερο
+ -Λύση: axion σκοτεινή ύλη ( Big Bang), Ήλιο >>> CAST Εργαστήριο, π.χ., OSQAR / CERN
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Beyond Standard Model physics!
Axions … to explain DM -> …and more!?
Khoury + Weltman 2004Chameleons … to explain DE
CHs: inspiring particles!
Rigorous theory missing
Search on a wide front for:solar-, lab-, cosmic - a/CHs
Higgs
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Sun: A perfectly shielded “radioactive” source of exotica
Solar Axions:
Visible light
ν’s
AxionsChameleons Paraphotons...WISPs
+ more? - 4mm
mfp γthermal
Rsurface
|
~2 sec
~106 years
Visible light
tachocline
1 km
1cm-3000km 0km
Bsolar essential!
.. truely LSW!Random walk over L: Conversion ~(BsolarL)2
http://www.solarviews.com/eng/sun.htm6
SUN: 5 Mtons / s of energy is released
~100 ktons ~axions / s … …
overlooked?!
10%
Corona … enigma…. 1939 …?? the coronal heating mechanism remains unknown!
B. De Pontieu, et al., Science 331 (2011) 55, ttp://www.sciencemag.org/content/331/6013/55.abstractSee also http://www.sciencemag.org/content/suppl/2011/01/05/331.6013.55.DC1/De-Pontieu.SOM.pdf
Overlooked ~axions, ~Chameleons, … WISPs!?
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One of the most enduring problems in modern astrophysics is to explain:
how the MK solar corona is created and sustained.S.J. Bradshaw, J.A. Klimchuk, J.W. Reep, http://xxx.lanl.gov/pdf/1209.0737.pdf
One of the most enduring problems in modern astrophysics is to explain how the MK solar corona is created and sustained.
S.J. Bradshaw, J.A. Klimchuk, J.W. Reep, http://xxx.lanl.gov/pdf/1209.0737.pdf
Note: Bʘ ignored sofar…
a / CH -helioscope
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The Primakoff Effect 1951
g
×B,Ε
H. Primakoff
Behind all present axion work!
axion
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2
GeV10g
110aγ
keV4.2Ea
CERN Axion Solar Telescope + Chameleons
Production: Primakoff effectThermal photons interactingwith solar nuclei produce Axions.
Detection Inverse Primakoff: axion interacting coherently with a strong magnetic field (~B2) converts to a photon
Signal: excess of X-rays during alignment over background
Differential axion flux on Earth
Paγ (g10)2∙1.7∙10-17
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Pierre Sikivie 1983
the only moving telescope @ 1.8K
g
BX
gvirtual
α
CAST
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1.7 m
X-Ray Telescope
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C E R N C o u r i e r A p r i l 2 01 0
CAST
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ALPS / DESY
CAST
ADMX
CDM axion search
CDM axions / ALPs
μέλλον?
Chameleons
Transparent windows• Nanotubes material : base material Al2O3 tests in progress at DESY UoPatras
• Feasibility for Kapton based using Microbulk techniques honeycomb Saclay
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321/7/2012
Isotropic Compton-scattering = f(column density) [≈0 / ≈1]
CAST in space? YES!!
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It is remarkable + fascinating that the Sun emits intense X-rays... mystery
S. Tsuneta, AAPPS Bulletin, 19(#3) (2009) 11 http://www.cospa.ntu.edu.tw/aappsbulletin/data/19-3/11Hinode.pdf
SPHINX :
- confirmed best in 2009 extreme solar minimum
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CAST solar physics?
γ - deficit / excess
( [Bʘ]2 + ρ ) (dis)appearance of photonsa/CH signal
spatiotemporal dependence“unexpected”
@ ARs
transient events, e.g.: nanoflares
ΔT/T ∼a few×10-
5
CMB
ΔΤ ≈ ± 200μK
ΔT/T ∼ 103
New physics! » new physics?!
3000K6000K
SUN
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http://www.astro.helsinki.fi/press/CCEJulAXIONS19-22-3rd.pdf K. Zioutas,CERN Courier July/August 2006
Axion community support open accessPublications are the major output of scientific research and should be made available in their final form to the widest possible audience. In his talk Jens Vigen, CERN’s head librarian, underlined the importance of the axion community’s decision to challenge the current publishing paradigm that is based on publication behind toll barriers, and supported unanimously the open-access initiative advocated by CERN. For example, Living Reviews in Solar Physics, published by the Max Planck Society, is an interesting new title published as open access. Vigen appreciated the willingness of the CAST collaboration to make data from the experiment freely available worldwide (CERN Courier May 2003 p50).
2006
An ongoing revolution
in all science in all times
…exciting times!
Σας ευχαριστώ!
